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Thread: EB Falcon very sluggish?

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    Exclamation EB Falcon very sluggish?

    A mate has an EB Falcon, has always run fine but recently has lost all of its power and is using ridiculous ammounts of petrol. Still drives but REALLY slow (50km max) when going up hills and has no quick take off anymore. Generally splutters when putting foot down fast, only works with a SLOW takeoff.

    He changed the air filter, petrol filter, leads and plugs, none of that has made any difference.

    It seems to take ages to start every morning but once started it goes but has no power.

    The injectors are the only thing left to investigate. Could this be the problem.

    To me it seems like petrol or air is being restricted?

    Thanks.



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    Does it max out at 50 like it doesn't want to shift into second gear?

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    Quote Originally Posted by intelliGEORGE View Post
    Does it max out at 50 like it doesn't want to shift into second gear?
    You got it, sounds like its reving flat chat but just doesnt want to pick up, when foot goes to the floor it starts to backfire untill I back off the accelerator.

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    Has he got oil in the tranny? That would def cause problems for him.

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    Quote Originally Posted by N00b View Post
    when foot goes to the floor it starts to backfire untill I back off the accelerator.
    That's the rev limiter, sounds like a tranny problem. Check for oil in the tranny before he burns the clutches (thats if he hasn't done so already)

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    Yes its an auto, yes it has sufficient tranny fluid and is definetaly NOT slipping in gear.

    The backfiring has me stumped, it backfires when foot goes flat to the floor but seems to pick up when foot is backed off. Still lacks all power though but drives.

    Also seems to have developed a flatspot when taking off, but only after removing foot from accellerator and trying to take off again. If not backing off accellerator al the way then there is no flat spot?

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    is it changing gears?

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    How is the timing?

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    Quote Originally Posted by intelliGEORGE View Post
    is it changing gears?
    Yes, will change gears eventually when the speed builds up, but accellerator needs to be backed off a little before it will pick up.

    To me it seems as though the petrol or the air is being heavily restricted, but thats just me.

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    Its your MAP sensor or O2 sensor, a very common fault on the E series Fords.

    On the passanger side firewall, under the bonnet is a plastic black box, this has a wiring plug under it and a rubber/plastic hose running to the inlet manifold.

    Check the hose has not split or come off the MAP or manifold, test another MAP and if all that fails replace your o2 sensor.

    Its a very common problem, if your in Melbourne i have a spare MAP you can borrow and test with, that failing test another oxygen sensor.

    Signs of it being the MAP or O2 sensor are running like a clyinder is missing, black smoke from the exhaust, no/very low power and very high fuel consumption.

    Make sure you disconnect your battery for half an hour to reset the ECU and put it back to base factory settings.

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    Quote Originally Posted by rob916 View Post
    How is the timing?
    The manual says the timimg is cotrolled by the ECU and doesnt require adjusting, otherwise I would loosen the dizzy and try adjusting.

    Should I try anyway?

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    Godzilla is on the money with the map sensor.
    Backfiring makes me think timing.
    It can be adjusted so may have moved?, it will need to be within certain limits for the ecu to be able to control it.
    Put a light on it and see.
    Does it rev properly when not under load?
    Check on the ford forums, these guys have seen and documented it all before.
    Or just buy a new one, aren't fords a throw away car? <ducking for cover>

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    You need to short a test pin to earth to put the engine into test mode, this gives you 30 seconds or so to test your timing with a timing light before it goes back to default mode.

    Dont touch it yet as without the right gear/ method you will cause other problems.

    How is the dizzy cap, rotor and coil?

    Id first be looking at the MAP and O2 sensor.

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    Quote Originally Posted by rob916 View Post
    Godzilla is on the money with the map sensor.
    Backfiring makes me think timing.
    It can be adjusted so may have moved?, it will need to be within certain limits for the ecu to be able to control it.
    Put a light on it and see.
    Does it rev properly when not under load?
    Check on the ford forums, these guys have seen and documented it all before.
    Or just buy a new one, aren't fords a throw away car? <ducking for cover>
    Yeah, when not under load and on a flat it runs fine.

    LMAO, yeah I intend to throw it in 4 months after rego runs out.

    Quote Originally Posted by Godzilla View Post
    You need to short a test pin to earth to put the engine into test mode, this gives you 30 seconds or so to test your timing with a timing light before it goes back to default mode.

    Dont touch it yet as without the right gear/ method you will cause other problems.

    How is the dizzy cap, rotor and coil?

    Id first be looking at the MAP and O2 sensor.
    Man, as far as the dizzy is concerned, how the fcuk do you get the clip off thats resting against the engine block to open it, and how to get access without removing the manifold.

    Have no timimg light so wasnt game to mess with it.

    Thanks for all help and suggestions guys, have posted on the ford forums as suggested.

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    I have had a coil go on mine and it did the exact same thing as yours mate

    But mine was a EX Taxi that had done 3 million miles so that might have had something to do with it
    When you do things right, people won't be sure that you have done anything at all

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    Listen to Godzilla…MAP or O2 sensor. Don’t get sucked into the timing thing, the MAP sensor will dump fuel into the exhaust where eventually it will ignite and sound like a backfire. Check the sensor on the firewall.

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    Quote Originally Posted by best4less View Post
    I have had a coil go on mine and it did the exact same thing as yours mate

    But mine was a EX Taxi that had done 3 million miles so that might have had something to do with it

    LMAO, well mine is not EX Taxi but has still done nearly half a million kms.

    Thanks for the feedback, will try that one too.

    @Ramjet, interesting comment. The backfiring doesnt seem to be comming from the engine bay, more so underneath and to the rear of me.

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    Quote Originally Posted by N00b View Post

    @Ramjet, interesting comment. The backfiring doesnt seem to be comming from the engine bay, more so underneath and to the rear of me.
    Congregates in the catalytic converter or the mufflers…will blow them out if you let it go. Wonder how I know that one.

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    Quote Originally Posted by Ramjet View Post
    Congregates in the catalytic converter or the mufflers…will blow them out if you let it go. Wonder how I know that one.
    Well fcuk me, now I know why that exhaust smell has just started to plague me, particularly when going DOWN hills and not using brakes..

    Thanks guys, your info has been priceless.

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    Pity us ex Falcon owners...never again...

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